Craig County, Oklahoma
The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is D (very slow infiltration, high runoff). This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Craig County, Oklahoma.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Dennis silt loam, 1 to 3 percent slopes | 97K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Collinsville-Vinita complex, 2 to 30 percent slopes | 39K | Somewhat poorly drained | D | Very limited | Very limited |
| Parsons silt loam, 0 to 1 percent slopes | 35K | Somewhat poorly drained | D | Very limited | Very limited |
| Verdigris-Eram complex, 0 to 20 percent slopes | 26K | Well drained | B | Very limited | Very limited |
| Apperson silty clay loam, 1 to 3 percent slopes | 25K | Somewhat poorly drained | D | Very limited | Very limited |
| Wagstaff-Shidler complex, 1 to 8 percent slopes | 24K | Moderately well drained | D | Very limited | Very limited |
| Apperson silt loam, 1 to 3 percent slopes | 21K | Somewhat poorly drained | D | Very limited | Very limited |
| Taloka silt loam, 0 to 1 percent slopes | 18K | Somewhat poorly drained | D | Very limited | Very limited |
| Bates loam, 3 to 5 percent slopes | 15K | Well drained | C | Somewhat limited | Very limited |
| Verdigris silty clay loam, 0 to 1 percent slopes, occasionally flooded | 15K | Well drained | C | Very limited | Very limited |
| Dennis silt loam, 3 to 5 percent slopes, eroded | 11K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Hector-Bolivar complex, 5 to 20 percent slopes | 10K | Well drained | D | Very limited | Very limited |
| Radley silt loam, 0 to 1 percent slopes, occasionally flooded | 10K | Moderately well drained | B | Very limited | Very limited |
| Shidler silty clay loam, 0 to 3 percent slopes | 10K | Well drained | D | Very limited | Very limited |
| Foyil and Talala soils, 0 to 12 percent slopes | 9K | Well drained | D | Not limited | Not limited |
| Bates-Collinsville complex, 1 to 5 percent slopes | 8K | Well drained | C | Somewhat limited | Very limited |
| Mayes silty clay loam, 0 to 1 percent slopes | 8K | Poorly drained | D | Very limited | Very limited |
| Aliceville silty clay loam, 1 to 3 percent slopes | 8K | Moderately well drained | D | Very limited | Very limited |
| Hector-Bolivar complex, 1 to 5 percent slopes | 8K | Well drained | D | Very limited | Very limited |
| Craig silt loam, 1 to 3 percent slopes | 7K | Well drained | C | Not limited | Very limited |
What This Means
Building & Foundations
About 90% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 97% of soils are rated "very limited" for septic absorption fields. Poorly drained soils can't absorb septic effluent effectively. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Many soils hold water for extended periods. Raised beds are highly recommended to improve drainage for vegetables. Well-adapted native plants and water-loving species will do best in natural conditions.